Perhaps you should try some spelling variations:
"bo sach my thuat ung dong tri marketing" » "bo sach my thuat ung dong trong marketing", "bo sach my thuat ung dong tvqg marketing", "bo sach my thuat ung dong _ marketing", "bo sach my thuat hung dong tri marketing", "bo sach my thuat xung dong tri marketing", "bo sach my thuat song dong tri marketing", "bo sach ky thuat ung dong tri marketing", "bo sach ki thuat ung dong tri marketing", "bo sach va thuat ung dong tri marketing", "bo sach my thuat vung dong tri marketing", "bo sach my thuat dung dong tri marketing", "bo sach my thuat nung dong tri marketing", "bo sach my thuat ung dong tai marketing", "bo sach my thuat ung dung tri marketing", "bo sach my thuat ung dong thi marketing", "co sach my thuat ung dong tri marketing", "hoc sach my thuat ung dong tri marketing", "bo sach y thuat ung dong tri marketing", "bo sach ty thuat ung dong tri marketing", "bo sach mau thuat ung dong tri marketing"
"bo sach my thuat dung dung va marketing" » "bo sach my thuat dung dung van marketing", "bo sach my thuat dung dung tac marketing", "bo sach my thuat dung dung gia marketing", "bo sach my thuat hung dung va marketing", "bo sach my thuat xung dung va marketing", "bo sach my thuat song dung va marketing", "bo sach my thuat ung dung va marketing", "bo sach my thuat dung ung va marketing", "bo sach my thuat dung dong va marketing", "bo sach ky thuat dung dung va marketing", "bo sach ki thuat dung dung va marketing", "bo sach va thuat dung dung va marketing", "co sach my thuat dung dung va marketing", "hoc sach my thuat dung dung va marketing", "bo sach y thuat dung dung va marketing", "bo sach ty thuat dung dung va marketing", "bo sach mau thuat dung dung va marketing"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("bo sach my thuat ung dong tri marketing") or ("bo sach my thuat dung dung va marketing"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bo sach my thuat ung dong tri marketing") OR ("bo sach my thuat dung dung va marketing")).
• Removing quotes may allow a broader search: (( bo sach my thuat ung dong tri marketing ) or ( bo sach my thuat dung dung va marketing )).
• Adding a wildcard symbol may retrieve word variants: (("bo sach my thuat ung dong tri marketing") or ("bo sach my thuat dung dung va marketing"))*.